Staff Backend Engineer - Intelligent Cloud

What You Will Do Design and build scalable backend systems for pricing, billing, and usage metering Develop event-driven architectures to process large volumes of real-time usage and infrastructure data Build systems that provide real-time visibility into customer usage and billing metrics Design components for rate cards, pricing plans, discounting, and multi-currency transactions Work on distributed systems that support exponential growth in customers and usage events Collaborate with product, infrastructure, and platform teams to build cloud-native commerce capabilities Ensure high levels of accuracy, reliability, and scalability in revenue-critical systems Contribute to architecture decisions and drive engineering best practices Basic Qualifications 8+ years of backend engineering experience Strong proficiency in Java-based backend development Experience working with cloud platforms (AWS preferred) Experience building event-driven architectures and distributed systems Experience designing and scaling high-throughput systems handling large volumes of events Experience working with AWS-managed databases (e.g., Aurora or similar OLTP systems) Familiarity with containerized systems and Kubernetes ecosystems Experience building real-time systems (e.g., usage tracking, billing, metering pipelines) Strong understanding of system design, scalability, and reliability principles Strong problem-solving skills with focus on efficiency and correctness Experience collaborating with cross-functional teams Preferred Qualifications Experience with Golang for backend development Deep expertise in AWS ecosystem (compute, storage, distributed services) Experience designing large-scale event processing systems (hundreds of millions to billions of events) Experience building cloud commerce platforms, billing systems, or pricing engines Familiarity with real-time usage metering, invoicing, or revenue systems Experience working with Kubernetes-based observability signals (logs, infra events, metrics) Exposure to high-growth systems scaling from early stage to large production scale Experience building multi-tenant, customer-facing cloud platforms Type of work model Hybrid / Onsite / Remote working Our Hybrid work model: Coupang hybrid work model is designed to enable a culture of collaboration that acts a catalyst to enrich the experience of employees. Employees are required to work at least 3 days in the office per week, with the flexibility to work from home 2 days a week, depending on the role requirement. Some businesses may require more time in office due to nature of work. Details to consider Those eligible for employment protection (recipients of veteran’s benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws. Privacy Notice Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below. https://privacy.coupang.com/en/l and/jobs/